Watch.



F. F. J. PRIHODA.

WATCH.

APPLICATION min nEc. 11,19 155.

' 1,244,127. r Patented (m 23,1917.-

INVENTOR v 3 M Ill TNESSS 4 06% 2 SHEETS-SHEET 1.

ATTORNEY F. F. l. PRIHODA.

WATCH. APPLICATION [ILED 05c. 11. 1915.

Patented 0017. 23, 1917.

2 SHEETS-SHEET 2 INVENTOR ATTORNEY U I D STATES rATENT OFFICE}.

FRED F. J.'PRIHODA, OF NEW ROCHELLE, NEW YORK.

WATCH.

Application filed December 11, 1915.

To all whom z't may concern:

Be it known that I, FRED F. J. PRIIIODA, a citizen of the United States,residing at NewRochelle, in the county of Vl estchester and State of NewYork, have invented cer' tain new and useful Improvements in Watches,ofw'hich the following is a specification;

This invention relates to a watch, particularly of that type which is ofextremely thin construction and is adapted to be carried in the vestpocket.

The primary object otthe invention is to provide a novel windingmechanism for watches, wherein rotary movement or the stem of the watchto tension the power spring'is obviated and which provides improvedmeans for empowering the spring upon moving the stem longitudinally Afurther object is to provide improved means in connection with amechanism of the above described character for setting the watch.

A still further obj ect of the invention is to provide a watch windingand setting mechanism of the above mentioned type, which is simple andinexpensive in construction, which'comprises but few readily assembledparts, which is positive in 'both its winding and setting movements, andwhich combines simplicity with etiiciency and practicability. Figure 1is a rear elevation showing the outline of a; watch case and thearrangement of the setting and winding mechanism with the back plate ofthe movement removed,

Fig. 2 is a detail rear elevation of the watch movement with the backplate in place, and showing the gear trains comprising the watch.movement dotted in position,

Fig. 3 is an enlarged sectional view on the line 3 3 of Fig. 2,

Fig. 4c is a sectional view on the line 4l l of Fig. 3,

Fig. 5 is a detail edge elevation showing the winding arbor clutch,

Fig. 6'is a detail view showing the winding element,

Fig. 7 are face views of the cooperating clutch members,

Fig. 8 is a plan view of the clutch spring,

Fig. 9 is a perspective view of the stem bearing,

Fig. 10 is a perspective view of the stem minus the crown and,

Fig. 11 is a perspective view of the sectoral rack.

Specification of Letters Patent.

Patented Oct. 23, 1917.

Serial No. 66,329.

The watch in'the present instance consists of the casing A.accommodating the move ment B, the latter being of the usual well knownconstruction except that the main spring arbor has atlixed thereto a hubl, to the periphery oi? which one end of the main spring 2 is connected.This main spring is accommodated within the housing 3, and the outer endof the main spring is secured to the housing or to the casing by a screwi. The arbor has formed or secured thereon the winding arbor pinion 5 bymeans of which the arbor is rotated to tension the spring 2.

Loosely carried by said arbor is the time wheel 6, having aflixedthereto, the clutch member 7, provided with teeth 8 adapted to coactwith teeth 9 on a similar clutch member 10. The clutch member 10 ismounted on the squared portion 11 of the winding arbor, so as to rotatewith the arbor, and is capable of moving longitudinally of the saidarbor. The clutch member 10 is held yieldably engaged with theclutchmember 7 by a spring 12 retained by the nut 13 screwed on the threadedextension l-l .ot' the winding arbor pinion. It will be seen from thisconstruction that when the pinion 5 is rotated in one direction, thepower spring upon the hub 1 will be wound, and such movement will not inany way affect the time wheel 6 as the clutch member 10 car ried by thearbor will slip or play over the member 7. However, when the unwindingaction of the spring takes place, the arbor is moved in the oppositedirection, and by reason of the clutches 1O 'Z, carries with it the timegear 6, through which the force of said spring is transmitted to thegear train and the escapement mechanism of the watch movement.

he setting of the hands of the watch is efi'ected through the medium ofthe gear train including the pinion 15, gear 16, pinion 17, and gear 18.Meshing with the gear 16 is a pinion 19 which also meshes with a pinion20. The arbor 21 carries one of the time hands and the other hand isconnected to the gear 18.

Mounted on the movement is a bearing stand 22, which carries a bearing23, and a stop 24, the said parts being held in place by suitable screws25. This bearing accommodates the reciprocable stem 26 which at itsupper end carries a crown face 27, and adjacent its lower end carriesthe collar 28 and the crown gear 29. The latter gear meshes with thepinion 20 when the same is depressed and thesaid stem is li-mitedin itsdownward movement by engagement at its lower end with the stop 24:. Whenin'the latter position, rotation of the stem will operate through thegear 29, pinions 201-J, gear 16, pinion 15, andpinion and gear 17 and 18to move the hands of the watch.

The winding mechanism for the watch includes an arm 30 pivoted at oneend as at 31 to the casing, and is provided at its opposite or free endwith a sectoral rack 32. This arm is offset as shown,andits under edgeprovides an abutment face 33 to be engaged by the shoulder 28 on thestem 26. The rack v32 isenmeshed with a pinion 33,

the latter beinglin mesh with the winding arbor pinion 5. :The main orpower spring of the watch in the present instance is of such qualitythat a relatively small amount of rotarymovement delivered to thewinding arbor will empower the springto drive the time gearing therequisite period,but it will be understood that the ratio of the gears33 and 5 may be changed so that a single outward pull upon the stem 26will rotate the winding arbor pinion one or more times as desired.

When the spring is de'energized, the arm 30, by reason of itsassociation with the spring arbor by the gear 33, will assume theposition shown in Figs. 2 and I. To wind the spring, it is but necessarytomove the stem 26outwardly. This movement of the stem lifts the arm 30,and'the sectoral rack 32, rotates the gear 33, and the latterby reasonof its engagement with pinion 5, moves the hub 1 in a directiontotension the spring 2. As has beenbefore stated, during winding movementof the winding arbor, clutch member 10 will slip over the clutch member7, carried by the wheel 5, but retrograde movement of the said arborwill operate through the said clutch members to drive the time gears.IVhen the spring is wound, the arm 30 assumes the position shown in Fig.1, and is moved downwardly by unwinding action of the spring 2. The stem26 may at any time be moved inwardly to engage its gear 29 with thesetting pinion 20. If desired, springs may be used to yieldably maintainthe stem 26 in a position with its gear 29 out of engagement with thepinion 20, and with the stem moved inwardly to approximately theposition shown in Fig. 4: of the drawings.

WVhile the present disclosure is that of what I believe to be thepreferred embodi ment of theinventiomit is to be understood that theinvention is not limited thereto, but that various changes may be vmade.in the (construction, arrangement, and proportion of parts, withoutdeparting from the spirit of the invention, as defined in the appendedclaims.

I claim:

1. In a watch winding mechanism, a spring arbor, a gear on said arbor, alongitudinally-movable stem, an arm pivoted at one end adjacent saidstem, a sectoral rack on the free end of said arm enmeshed with saidgear, a shoulder on said stem to engage said arm, and a clutch mechanismconnecting said arbor and winding mechanism.

2. In a watch winding mechanism, .11. spring arbor, a gear secured tosaid arbor, a driving wheel loosely mounted on said arbor andinoperative connection withsaid mechanism, a clutch member secured tosaid wheel, a clutch member carried by said .arbor and yieldably engagedwith saidfirst mentioned clutch member, a pivoted arm adapted when movedto rotate said gear, and a longitudinally movable stem operativelyconnected with said arm for moving the same.

3. In a watch winding mechanism, a spring arbor,,a driving wheel mountedfor rotation on said arbor and in operative connection with saidmechanism, a clutch mechanism between said arbor and time wheel, an armpivoted atone end near said mechanism,a sectoral rack at the free end ofsaid arm, a gear on said arbor engaged with said rack, .a longitudinallymovable stem, and a shoulder on said stem adapted to engage said arm tomove the latter.

4. In a watch winding -mechanism, a spring arbor, a gear rotatablymounted on said arbor, a clutch on said gear for estab' lishing aconnection between said 3 ring arbor and said gear when the latter is.10- tated in one direction, a longitudinally movable stem, a shoulderon said stem, an arm pivoted at one end adjacent said mechanism andextending angularly across said stem and in thcpath traversed by saidshoulder, and a-sectoral rack at the free end of said arm and in meshwith said gear.

In a watch winding mechanism, a, spring arbor, a stem, ashoulder on-saidstem, an arm pivoted at one end and extending across and in closeproximity to said stem, an offset portion on said .arm adapted to beengaged by said shoulder when said stem is moved in one direction, and asectoralrack at the free end of-said arm operatively connected with saidwinding mechanism. r

In testimony whereof I afiix my signature in presence of two witnesses.

FRED 'F. J. PRIHODA. Witnesses:

ABNER WooDrN, GEORGE ONEIL.

copiesiot this patentmay be obtained for five cents each, by addressingthe Commissioner of Iatents, Washington, D. 0.

